De Guzman, R. (2003). Cause of Manila Bay crash traced by probers. Manila Bulletin.
芝加哥风格引文De Guzman, Ronniel. "Cause of Manila Bay Crash Traced by Probers." Manila Bulletin 2003.
MLA引文De Guzman, Ronniel. "Cause of Manila Bay Crash Traced by Probers." Manila Bulletin, 2003.
警告：这些引文格式不一定是100％准确.